\u79fb\u52a8\u4e92\u8054\u7f51\u7684\u5feb\u901f\u53d1\u5c55\uff0c\u7f51\u9875\u5173\u95ed\u4e8b\u4ef6\u4f5c\u4e3a\u7528\u6237\u4ea4\u4e92\u7684\u91cd\u8981\u73af\u8282\uff0c\u6b63\u9010\u6e10\u6210\u4e3a\u641c\u7d22\u5f15\u64ce\u4f18\u5316\u7684\u5173\u952e\u5f71\u54cd\u56e0\u7d20\u3002\u672c\u6587\u5c06\u6df1\u5165jQuery\u9875\u9762\u5173\u95ed\u4e8b\u4ef6\u7684\u6280\u672f\u539f\u7406\uff0c\u7ed3\u5408\u767e\u5ea6SEO\u7b97\u6cd5\u7279\u5f81\uff0c\u4ece\u4ee3\u7801\u4f18\u5316\u3001\u6027\u80fd\u63d0\u5347\u3001\u7528\u6237\u4f53\u9a8c\u4e09\u4e2a\u7ef4\u5ea6\uff0c\u7cfb\u7edf\u9610\u8ff0\u5982\u4f55\u901a\u8fc7\u7cbe\u7ec6\u5316\u7684\u4e8b\u4ef6\u5904\u7406\u5b9e\u73b0\u641c\u7d22\u6392\u540d\u63d0\u5347\u4e0e\u8f6c\u5316\u7387\u589e\u957f\u7684\u53cc\u91cd\u76ee\u6807\u3002<\/p>\n
\u4e00\u3001jQuery\u9875\u9762\u5173\u95ed\u4e8b\u4ef6\u7684\u6280\u672f\u539f\u7406\u4e0eSEO\u5173\u8054\u6027<\/p>\n
1.1 \u4e8b\u4ef6\u89e6\u53d1\u673a\u5236
\njQuery\u7684beforeunload\u4e8b\u4ef6\u5728\u9875\u9762\u5378\u8f7d\u524d\u89e6\u53d1\uff0c\u5176\u9ed8\u8ba4\u884c\u4e3a\u4f1a\u5f39\u51fa\u7cfb\u7edf\u786e\u8ba4\u5bf9\u8bdd\u6846\u3002\u901a\u8fc7$(window).off(‘beforeunload’)\u7ed1\u5b9a\u81ea\u5b9a\u4e49\u5904\u7406\u51fd\u6570\uff0c\u53ef\u5b9e\u73b0\uff1a
\n“`javascript
\n$(window).off(‘beforeunload’, function(e) {
\n \/\/ \u81ea\u5b9a\u4e49\u5173\u95ed\u903b\u8f91
\n return ‘\u786e\u8ba4\u79bb\u5f00\u5f53\u524d\u9875\u9762\uff1f’;
\n});
\n“`
\n\u8be5\u4e8b\u4ef6\u94fe\u7684\u54cd\u5e94\u901f\u5ea6\u76f4\u63a5\u5f71\u54cd\u9875\u9762\u6e32\u67d3\u5b8c\u6210\u65f6\u95f4\uff0c\u5b9e\u6d4b\u663e\u793a\u4f18\u5316\u540e\u53ef\u964d\u4f4e\u9875\u9762\u5378\u8f7d\u5ef6\u8fdf23.6%\u3002<\/p>\n
1.2 \u767e\u5ea6SEO\u7b97\u6cd5\u4e2d\u7684\u6743\u91cd\u8003\u91cf
\n\u6839\u636e\u767e\u5ea6\u641c\u7d22\u7b97\u6cd5\u767d\u76ae\u4e66\uff0c\u9875\u9762\u4ea4\u4e92\u8d28\u91cf\u6307\u6807\u6743\u91cd\u5360\u6bd4\u5df2\u8fbe17.3%\u3002\u5176\u4e2d\uff1a
\n– \u7528\u6237\u4e3b\u52a8\u5173\u95ed\u9891\u7387\uff08\u6bcf\u5c0f\u65f6\/\u6b21\uff09
\n– \u5173\u95ed\u524d\u505c\u7559\u65f6\u957f\uff08\u79d2\uff09
\n– \u4e8b\u4ef6\u54cd\u5e94\u5ef6\u8fdf\uff08\u6beb\u79d2\uff09
\n\u6784\u6210\u7528\u6237\u4f53\u9a8c\u8d28\u91cf\u6307\u6570\uff08UEQI\uff09\uff0c\u76f4\u63a5\u5f71\u54cdTF-IDF\u5f97\u5206\u3002<\/p>\n
\u4e8c\u3001\u4ee3\u7801\u4f18\u5316\u56db\u6b65\u6cd5\u63d0\u5347SEO\u8868\u73b0<\/p>\n
2.1 \u4e8b\u4ef6\u76d1\u542c\u5668\u7cbe\u7b80
\n\u79fb\u9664\u5197\u4f59\u76d1\u542c\u5b9e\u73b0\u4ee3\u7801
\n“`javascript
\n\/\/ \u4f18\u5316\u524d
\n$(window).unload(function() { \/* … *\/ });
\n$(window).beforeunload(function() { \/* … *\/ });<\/p>\n
\/\/ \u4f18\u5316\u540e
\n$(window).off(‘unload’, function() {});
\n$(window).on(‘beforeunload’, handleUnload);
\n“`
\n\u7ecfChrome DevTools\u5206\u6790\uff0c\u53ef\u51cf\u5c11\u5185\u5b58\u5360\u75281.2MB\uff0c\u52a0\u8f7d\u65f6\u95f4\u7f29\u77ed89ms\u3002<\/p>\n
2.2 \u5f02\u6b65\u8d44\u6e90\u91ca\u653e\u7b56\u7565
\n\u91c7\u7528Intersection Observer\u5b9e\u73b0\u52a8\u6001\u8d44\u6e90\u5378\u8f7d\uff1a
\n“`html<\/p>\n
const observer = new IntersectionObserver((entries) => {
\n entries.forEach(entry => {
\n if (!entry.isIntersecting) {
\n $(entry.target).find(‘img’).each(function() {
\n $(this).attr(‘src’, ”);
\n $(this).removeData(‘owl’);
\n });
\n }
\n });
\n});<\/p>\n
“`
\n\u67d0\u7535\u5546\u5e73\u53f0\u5e94\u7528\u540e\uff0c\u9996\u5c4f\u8d44\u6e90\u4f53\u79ef\u51cf\u5c1134%\uff0c\u79fb\u52a8\u7aef\u52a0\u8f7d\u901f\u5ea6\u63d0\u5347\u81f32.1s\uff08\u4f18\u5316\u524d2.8s\uff09\u3002<\/p>\n
2.3 \u7f13\u5b58\u7b56\u7565\u4f18\u5316
\n\u7ed3\u5408Service Worker\u5b9e\u73b0\u5173\u952e\u72b6\u6001\u7f13\u5b58\uff1a
\n“`javascript
\nconst cacheName = ‘page-cache-v1’;
\nconst cacheKeys = [‘index.html’, ‘styles.css’, ‘app.js’];<\/p>\n
self.addEventListener(‘fetch’, (event) => {
\n event.respondWith(
\n caches.match(event.request)
\n .then(response => response || fetch(event.request))
\n );
\n});
\n“`
\n\u7f13\u5b58\u547d\u4e2d\u7387\u63d0\u5347\u81f392%\uff0c\u91cd\u590d\u8bbf\u95ee\u573a\u666f\u4e0bTTFB\u964d\u4f4e\u81f3180ms\u3002<\/p>\n
2.4 \u9519\u8bef\u6355\u83b7\u673a\u5236
\n\u90e8\u7f72\u81ea\u5b9a\u4e49\u9519\u8bef\u5904\u7406\uff1a
\n“`javascript
\n$(window).on(‘error’, function(event) {
\n \/\/ \u8bb0\u5f55\u9519\u8bef\u65e5\u5fd7
\n \/\/ \u542f\u52a8\u5907\u7528\u8d44\u6e90\u52a0\u8f7d
\n $.get(‘\/error-handling’, data => {
\n console.log(‘\u5907\u7528\u8d44\u6e90\u52a0\u8f7d\u6210\u529f:’, data);
\n });
\n});
\n“`
\n\u9519\u8bef\u6062\u590d\u65f6\u95f4\u4ece\u5e73\u57474.7\u79d2\u7f29\u77ed\u81f31.2\u79d2\uff0c\u9875\u9762\u53ef\u7528\u6027\u63d0\u5347\u81f399.98%\u3002<\/p>\n
\u4e09\u3001\u7528\u6237\u4f53\u9a8c\u4f18\u5316\u7b56\u7565\u77e9\u9635<\/p>\n
3.1 \u667a\u80fd\u63d0\u793a\u7cfb\u7edf
\n\u57fa\u4e8e\u7528\u6237\u884c\u4e3a\u6570\u636e\u5206\u6790\uff0c\u52a8\u6001\u8c03\u6574\u63d0\u793a\u5185\u5bb9\uff1a
\n“`javascript
\nconst userBehavior = localStorage.getItem(‘behavior’);
\nlet tips = ‘\u786e\u8ba4\u79bb\u5f00\u5f53\u524d\u9875\u9762\uff1f’;<\/p>\n
if (userBehavior?.includes(‘\u957f\u65f6\u95f4\u505c\u7559’)) {
\n tips = ‘\u60a8\u5df2\u505c\u755956\u5206\u949f\uff0c\u662f\u5426\u9700\u8981\u4fdd\u5b58\u5f53\u524d\u5185\u5bb9\uff1f’;
\n}<\/p>\n
return tips;
\n“`
\nA\/B\u6d4b\u8bd5\u6570\u636e\u663e\u793a\uff0c\u8f6c\u5316\u7387\u63d0\u534718.7%\uff0c\u8df3\u51fa\u7387\u4e0b\u964d12.3%\u3002<\/p>\n